PRC's stage 1 6.0L Cylinder Heads come standard with the following options:

• NEW GM 317 Cores
• 2.00"/1.55" GM Valves
• Your Choice of Spring Kit
• Completely Assembled and Milled to your Specifications
• 65-72cc Chambers

All PRC cylinder heads are extensively researched and tested. The flow data below shows the superior performance of the PRC stage 1 6.0L cylinder heads!

3.910" Flow Plate - No Exhaust Pipe

LIFT INTAKE FLOW EXHAUST FLOW
.200" 147 CFM 114 CFM
.300" 207 CFM 148 CFM
.400" 187 CFM
.500" 292 CFM 202 CFM
.600" 313 CFM 220 CFM